Ultraviolet sterilization device for dish washing machine
By introducing a movable sterilization mechanism and drying components into the dishwasher, the problems of poor performance and incomplete coverage of ultraviolet germicidal lamps in humid environments are solved, achieving full-area sterilization and protection of the germicidal lamps, thus improving the sterilization effect and the reliability of the equipment.
Patent Information
- Application Number
- CN202512050473.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-31
- Publication Date
- 2026-02-03
AI Technical Summary
Existing UV sterilization dishwashers are not effective at sterilizing in humid environments and cannot fully cover shadowed areas such as the back of tableware, grooves, and corners of the inner liner, resulting in incomplete sterilization and potential hygiene risks.
It adopts a movable sterilization mechanism and an angle adjustment mechanism, combined with a drying component, to achieve full-area sterilization coverage and dehumidification protection, ensuring that the germicidal lamp is not affected by moisture.
It achieves comprehensive sterilization coverage, improves the sterilization effect and extends the lifespan of the sterilization lamp, ensuring the hygiene and safety of the dishwasher's interior.
Smart Images
Figure CN121445280A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of ultraviolet sterilization, in particular to a kind of ultraviolet sterilization device for dishwasher. BACKGROUND
[0002] With the improvement of residents' health consciousness and the upgrading of household health needs, dishwasher has gradually transformed from a simple cleaning tool to a "cleaning + sterilization" integrated equipment, and the health and safety of tableware has become one of the core factors for consumers to choose dishwasher. The current mainstream dishwasher sterilization technology is mainly divided into high-temperature steam sterilization, ultraviolet sterilization and silver ion sterilization. Among them, high-temperature steam sterilization occupies a dominant position due to its broad-spectrum sterilization capability, but it has inherent defects such as high energy consumption and limited effect on killing heat-resistant spores. Although silver ion sterilization has good effect, it has high initial cost and is easily affected by water quality to form deposits, reducing the stability of sterilization, and there is also a risk of corrosion to wooden tableware. Under this background, ultraviolet sterilization technology is gradually applied in the field of dishwasher due to its advantages such as low energy consumption, no chemical residues and adaptation to heat-resistant tableware, forming ultraviolet sterilization lamp dishwasher products. The core principle of ultraviolet sterilization is to use UVC band (wavelength 200-280nm) ultraviolet light to destroy the DNA / RNA structure of bacteria and viruses, so that they lose the ability to reproduce and cause disease. Among them, the UVC ultraviolet light with a wavelength of about 254nm has the best sterilization efficiency. However, there are still many technical bottlenecks in the actual application of existing ultraviolet sterilization lamp dishwashers, resulting in uneven sterilization effect and difficulty in meeting consumers' high requirements for health and safety. The specific defects are as follows: After the dishwasher works, the inside is easy to leave a humid environment, which not only leads to poor sterilization effect of the sterilization lamp, but also accelerates the performance degradation of the sterilization lamp and shortens its service life. In addition, tableware is usually stacked in the dishwasher, and the ultraviolet sterilization lamp in the existing technology is generally fixed in a single point. However, ultraviolet light has weak penetrating power, which cannot effectively irradiate the back of the tableware, the shadow blind area such as groove, and it is also difficult to achieve full sterilization coverage of the key parts such as the edge of the dishwasher inner tank and the rubber sealing ring. Therefore, the whole machine is not completely sterilized, and there is a health risk. Therefore, a dishwasher ultraviolet sterilization device is proposed to solve the above problems. SUMMARY
[0003] The purpose of the present application is to provide a dishwasher ultraviolet sterilization device to solve the problems raised in the background.
[0004] To achieve the above purpose, the present application provides the following technical solutions: As an optional solution of the dishwasher ultraviolet sterilization device, the dishwasher ultraviolet sterilization device comprises a dishwasher, a rotating door, an operation panel and a sterilization module. A rotatable door is installed on the front side of the dishwasher; An operation panel for controlling the dishwasher is also installed on the front side of the dishwasher. A sterilization module for sterilizing and disinfecting the inside of the dishwasher is installed on the side of the dishwasher. The sterilization module comprises a mounting frame fixedly connected with the dishwasher, a sterilization mechanism for sterilization and disinfection is further installed in the inside of the mounting frame, and a drying mechanism fixedly connected with the mounting frame is arranged above the sterilization mechanism. A first motor is further installed on one side of the inside of the mounting frame, a threaded shaft is fixedly connected to the main shaft end of the first motor, a threaded sleeve is spirally connected to the outside of the threaded shaft, and a sealing plate is fixedly connected to the outside of the threaded sleeve.
[0005] As an optional solution of the ultraviolet sterilization device for the dishwasher, the bottom of the sealing plate is embedded in the inside of the sealing clamping frame, the outside of the sealing clamping frame is fixedly connected with the mounting frame, and a groove is formed on the side of the sealing clamping frame facing the sealing plate.
[0006] As an optional solution of the ultraviolet sterilization device for the dishwasher, a guide block is further arranged on one side of the sealing plate, and the outside of the guide block is fixedly connected with the mounting frame.
[0007] As an optional solution of the ultraviolet sterilization device for the dishwasher, an inclined surface is arranged on one side of the guide block.
[0008] As an optional solution of the ultraviolet sterilization device for the dishwasher, a ventilation net is further installed on one side of the mounting frame.
[0009] The core principle of ultraviolet sterilization is to use UVC band ultraviolet light to destroy the DNA / RNA structure of bacteria and viruses, so that they lose the ability to reproduce and cause diseases. Among them, the UVC ultraviolet light with a wavelength of about 254 nm has the best sterilization efficiency. However, there are still many technical bottlenecks in the actual application of the existing ultraviolet sterilization lamp dishwasher, resulting in uneven sterilization effect, which is difficult to meet the high requirements of consumers for health and safety. The specific defects are as follows: After the dishwasher works, the internal environment is easy to be humid, which not only leads to poor sterilization effect of the sterilization lamp, but also accelerates the performance decay of the sterilization lamp and shortens its service life. In addition, the tableware is in a stacked state in the dishwasher, and the ultraviolet sterilization lamp in the prior art generally adopts a fixed single-point layout method. The ultraviolet itself has weak penetration, which cannot effectively irradiate to the back of the tableware, the shadow blind area such as groove, and it is also difficult to achieve omnidirectional sterilization coverage of the key parts such as the inner tank corner and rubber sealing ring of the dishwasher. Ultimately, the whole machine is not completely sterilized, which has hidden dangers. In the scheme, the installation frame is fixedly provided with a sterilization mechanism. During the sterilization operation stage, the pushing mechanism is started first, the installation frame is driven to move up and down by the pushing mechanism, and the sterilization mechanism is extended to the inside of the washing cavity of the dishwasher, providing basic support for global sterilization. Then start the telescopic device, the telescopic device drives the sliding block to move synchronously and rotate, and then drive the sterilization lamp installation frame to realize angle adjustment, and the sterilization lamp installation frame drives the sterilization lamp mounted therein to complete multi-dimensional angle adaptation, effectively breaking through the irradiation limitation of traditional fixed single-point installation, greatly expanding the ultraviolet irradiation coverage range, eliminating the sterilization blind area of the back of the tableware, groove and inner tank corner, and effectively ensuring the thoroughness and quality of the sterilization of the whole machine.
[0010] As an optional solution of the ultraviolet sterilization device for dishwasher, the sterilization mechanism includes a pushing mechanism fixedly connected with the installation frame, the free end of the pushing mechanism is fixedly connected with an installation frame, the other end of the installation frame is rotatably connected with a sterilization lamp installation frame, and the inner side of the sterilization lamp installation frame is installed with sterilization lamps arranged side by side.
[0011] As an optional solution of the ultraviolet sterilization device for dishwasher, the outer side of the installation frame is rotatably connected with a telescopic device, and the other end of the telescopic device is rotatably connected with a sliding block, and the outer side of the sliding block is slidably connected with the sterilization lamp installation frame.
[0012] When the dishwasher does not need to perform sterilization operation, the protection sealing program is started: the first motor is powered to rotate, driving the threaded shaft connected therewith to rotate synchronously, the threaded shaft drives the threaded sleeve to move in the axial direction during rotation, the threaded sleeve drives the sealing plate to translate downward until the sealing plate is accurately clamped into the sealing clamping frame, thereby sealing and plugging the opening of the mounting frame; the sealing structure can effectively isolate the water vapor, sewage and impurities generated during the washing stage of the dishwasher, prevent the humid environment from entering the inside of the mounting frame to contact the sterilization mechanism, prevent water vapor corrosion and pollution of the sterilization lamp and core components of the sterilization mechanism from the root, and ensure the service life and working reliability; at the same time, the guide block matched with the inside of the mounting frame plays the role of accurate guidance and limiting positioning during the up-down movement of the sealing plate, can effectively constrain the movement track of the sealing plate, avoid self-rotation deviation of the sealing plate during the up-moving opening or down-moving sealing process, ensure that the sealing plate and the sealing clamping frame are always accurately aligned, and improve the sealing stability.
[0013] As an optional solution of the ultraviolet sterilization device for the dishwasher, the drying mechanism includes a drying frame fixedly connected with the mounting frame, a second motor is installed in the inside of the drying frame, a fan blade is fixedly connected to the main shaft of the second motor, and a heating net is fixedly connected with the drying frame below the fan blade.
[0014] As an optional solution of the ultraviolet sterilization device for the dishwasher, a drying net is fixedly connected with the drying frame below the heating net.
[0015] After the sterilization work is completed, the drying assembly is started to perform dehumidification operation: the second motor outputs driving force to drive the fan blade to rotate at high speed to form a directional air flow, after external air enters through the air inlet channel, the air first flows through the heating net to complete the heating treatment, and then flows through the drying net for deep drying to form a drying hot air flow; the drying hot air flow can blow and dry the sterilization mechanism on the one hand, avoid water vapor remaining on the surface of the sterilization lamp and components of the sterilization mechanism, and prevent moisture erosion from causing performance degradation; on the other hand, the drying hot air flow can fill the inside of the washing chamber of the dishwasher, simultaneously dry and dehumidify the inner cavity, rubber sealing ring and surface of the tableware, quickly improve the humid environment inside the dishwasher, create a dry and clean working environment for subsequent operation of the sterilization mechanism, and further ensure the sterilization efficiency.
[0016] Compared with the prior art, the dishwasher has the advantages that: In the scheme, the sterilization mechanism is fixed inside the mounting frame. In the sterilization operation stage, the pushing mechanism is started first, and the mounting frame is driven to move by the pushing mechanism, which drives the sterilization mechanism to extend to the inside of the washing cavity of the dishwasher, providing basic support for global sterilization. Then start the telescopic device, the output power of the telescopic device drives the sliding block to move synchronously and linkage rotation, and then drags the sterilization lamp mounting frame to realize angle adjustment, and the sterilization lamp mounting frame drives the sterilization lamp carried inside to complete multi-dimensional angle adaptation, effectively breaking through the irradiation limitation of traditional fixed single-point installation, greatly expanding the ultraviolet irradiation coverage, eliminating the sterilization blind area of the back, groove and inner tank corner of the tableware, and effectively ensuring the thoroughness and quality of the whole machine sterilization.
[0017] After the sterilization work is completed, the drying assembly is started immediately to carry out dehumidification operation: through the output driving force of the second motor, the fan blade is driven to rotate at high speed to form a directional air flow. After the outside air enters through the air inlet channel, it first flows through the heating net to complete the heating treatment, and then passes through the drying net for deep drying to form a drying hot air flow. The drying hot air flow, on the one hand, fully sweeps and dries the sterilization mechanism, avoiding water vapor remaining on the surface of the sterilization lamp and the components of the sterilization mechanism, preventing moisture erosion from causing performance degradation; on the other hand, it fills the entire washing cavity of the dishwasher, simultaneously drying and dehumidifying the inner tank, rubber sealing ring and surface of the tableware, quickly improving the humid environment inside the dishwasher, creating a dry and clean working environment for the subsequent operation of the sterilization mechanism, and further ensuring the stability of the sterilization efficiency.
[0018] When the dishwasher does not need to perform sterilization operation, the protection sealing program is started: the first motor is energized and operated to drive the threaded shaft connected with it to rotate synchronously. The threaded sleeve moves along the axial direction during the rotation of the threaded shaft, and the sealing plate moves downward in linkage with the threaded sleeve until the sealing plate is accurately fitted into the sealing clamping frame to seal and block the opening of the mounting frame. This sealing structure can effectively isolate the water vapor, sewage and impurities generated during the washing stage of the dishwasher, prevent the humid environment from entering the inside of the mounting frame to contact the sterilization mechanism, and prevent water vapor corrosion and pollution of the core components of the sterilization lamp and the sterilization mechanism from the root, thereby ensuring the service life and working reliability. At the same time, the guide block matched with the inside of the mounting frame plays the role of accurate guidance and limiting positioning during the up-down movement of the sealing plate, which can effectively constrain the movement track of the sealing plate, avoid self-rotation deviation of the sealing plate during the up-moving opening or down-moving sealing process, ensure that the sealing plate and the sealing clamping frame are always accurately aligned, and improve the sealing stability. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is a structure schematic view of a kind of ultraviolet sterilization device for dishwasher whole; Figure 2 It is a structure schematic view of sterilization module of a kind of ultraviolet sterilization device for dishwasher; Figure 3It is a kind of washing machine with the structure diagram of ultraviolet sterilization device sterilization mechanism; Figure 4 It is a kind of washing machine with the structure diagram of ultraviolet sterilization device drying mechanism.
[0020] In the figure: 1-washing machine, 2-rotary door, 3-operation panel, 4-sterilization module, 401-mounting frame, 402-first motor, 403-threaded shaft, 404-threaded sleeve, 405-sealing plate, 406-sealing clamp, 407-sterilization mechanism, 4071-pushing mechanism, 4072-mounting frame, 4073-sterilization lamp mounting frame, 4074-sterilization lamp, 4075- telescopic device, 4076-sliding block, 408-guide block, 409-drying mechanism, 4091-drying frame, 4092-second motor, 4093-fan blade, 4094-heating net, 4095-drying net. DETAILED DESCRIPTION
[0021] Example 1: please see Figure 1 and Figure 2 The present application provides a technical solution: A kind of washing machine with ultraviolet sterilization device, including washing machine 1, rotary door 2, operation panel 3 and sterilization module 4; The front side of washing machine 1 is provided with rotatable rotary door 2; The front side of washing machine 1 is also provided with operation panel 3 for controlling washing machine 1; The side of washing machine 1 is provided with sterilization module 4 for sterilizing and disinfecting the inside of washing machine 1; Sterilization module 4 includes mounting frame 401 fixedly connected with washing machine 1, mounting frame 401 is also provided with sterilization mechanism 407 for sterilizing and disinfecting in the inside, the upper side of sterilization mechanism 407 is provided with drying mechanism 409 fixedly connected with mounting frame 401; The inside of mounting frame 401 is also provided with first motor 402, the main shaft end of first motor 402 is fixedly connected with threaded shaft 403, threaded shaft 403 is spirally connected with threaded sleeve 404 outside, threaded sleeve 404 is fixedly connected with sealing plate 405 outside.
[0022] The bottom of sealing plate 405 is embedded in the inside of sealing clamp 406, sealing clamp 406 is fixedly connected with mounting frame 401 outside, the side of sealing clamp 406 facing sealing plate 405 is provided with recess.
[0023] The side of sealing plate 405 is also provided with guide block 408, the outside of guide block 408 is fixedly connected with mounting frame 401.
[0024] The side of guide block 408 is provided with inclined surface.
[0025] One side of the installation frame 401 is also provided with a ventilation net.
[0026] The core principle of ultraviolet sterilization is to use UVC band wavelength 200-280nm ultraviolet to destroy the DNA / RNA structure of bacteria and viruses, so that they lose the ability to reproduce and cause diseases. Among them, the UVC ultraviolet with a wavelength of about 254nm has the best sterilization efficiency. However, there are still many technical bottlenecks in the actual application of the existing ultraviolet sterilization lamp dishwasher, resulting in uneven sterilization effect, which is difficult to meet the high requirements of consumers for health and safety. The specific defects are as follows: After the dishwasher works, the internal environment is easy to be humid, which not only leads to poor sterilization effect of the sterilization lamp, but also accelerates the performance decay of the sterilization lamp and shortens its service life. In addition, the tableware is usually stacked in the dishwasher, and the existing ultraviolet sterilization lamp generally adopts a fixed single-point layout method. However, the ultraviolet itself has weak penetration, which cannot effectively irradiate the shadow blind area such as the back of the tableware and the groove, and it is also difficult to achieve omnidirectional sterilization coverage of the key parts such as the edge of the dishwasher inner tank and the rubber sealing ring. Finally, the whole machine is not completely sterilized, which has hidden dangers. In the present scheme, the sterilization mechanism 407 is fixedly arranged in the installation frame 401. During the sterilization operation, the pushing mechanism 4071 is started first, the mounting bracket 4072 is driven to move up and down by the pushing mechanism 4071, and the sterilization mechanism 407 is extended to the inside of the washing cavity of the dishwasher 1, thereby providing basic support for global sterilization. Then the telescopic device 4075 is started, the sliding block 4076 is driven to move synchronously and rotate by the output power of the telescopic device 4075, thereby driving the sterilization lamp mounting frame 4073 to adjust the angle, and the sterilization lamp 4074 carried in the sterilization lamp mounting frame 4073 completes multi-dimensional angle adaptation, effectively breaks through the irradiation limitation of traditional fixed single-point installation, greatly expands the ultraviolet irradiation coverage range, eliminates the sterilization blind area of the back of the tableware, the groove and the corner of the inner tank, and effectively guarantees the thoroughness and quality of the sterilization of the whole machine.
[0027] Embodiment 2: The present embodiment is an improvement on embodiment 1. Please refer to Figure 3 , specifically, The sterilization mechanism 407 comprises a pushing mechanism 4071 fixedly connected with the installation frame 401, a mounting bracket 4072 fixedly connected to the free end of the pushing mechanism 4071, a sterilization lamp mounting frame 4073 rotationally connected to the other end of the mounting bracket 4072, and sterilization lamps 4074 installed side by side on the inner side of the sterilization lamp mounting frame 4073.
[0028] The outer side of the mounting bracket 4072 is rotationally connected with a telescopic device 4075, and the other end of the telescopic device 4075 is rotationally connected with a sliding block 4076. The outer side of the sliding block 4076 is in sliding connection with the sterilization lamp mounting frame 4073.
[0029] When dishwasher 1 does not require sterilization, the protective sealing program is activated: the first motor 402 is powered on and drives the threaded shaft 403 connected to it to rotate synchronously. During the rotation of the threaded shaft 403, the threaded sleeve 404 moves axially in a directional direction. The threaded sleeve 404, in conjunction with the sealing plate 405, moves downward until the sealing plate 405 precisely engages and embeds into the sealing bracket 406, thus sealing the opening of the mounting frame 401. This sealing structure effectively isolates water vapor, sewage, and impurities generated during the dishwasher 1's washing stage, preventing a humid environment from entering the mounting frame 401. The internal contact sterilization mechanism 407 prevents moisture corrosion and contamination of the sterilization lamp 4074 and the core components of the sterilization mechanism 407 from the source, ensuring their service life and operational reliability. At the same time, the guide block 408 provided inside the mounting frame 401 plays a precise guiding and limiting role during the up and down movement of the sealing plate 405. It can effectively constrain the movement trajectory of the sealing plate 405, prevent the sealing plate 405 from rotating and shifting during the upward opening or downward sealing process, and ensure that the sealing plate 405 and the sealing bracket 406 are always accurately aligned, improving sealing stability.
[0030] Example 3: This example is an improvement on Example 2. Please refer to [link / reference]. Figure 4 Specifically, the drying mechanism 409 includes a drying frame 4091 fixedly connected to the mounting frame 401, a second motor 4092 installed inside the drying frame 4091, a fan blade 4093 fixedly connected to the end of the main shaft of the second motor 4092, and a heating grid 4094 fixedly connected to the drying frame 4091 below the fan blade 4093.
[0031] Below the heating mesh 4094, there is a drying mesh 4095 that is fixedly connected to the drying frame 4091.
[0032] After sterilization is completed, the drying component is immediately activated for dehumidification: the second motor 4092 outputs driving force to drive the fan blades 4093 to rotate at high speed to form a directional airflow. After entering through the air inlet channel, the outside air first flows through the heating grid 4094 to be heated, and then passes through the drying grid 4095 for deep drying, forming a dry hot airflow. This dry hot airflow thoroughly blows and dries the sterilization mechanism 407, avoiding residual moisture on the surface of the sterilization lamp 4074 and the components of the sterilization mechanism 407, and preventing performance degradation due to moisture corrosion. On the other hand, it fills the entire washing chamber of the dishwasher 1, simultaneously drying and dehumidifying the inner tank, rubber sealing ring and the surface of the tableware, quickly improving the humid environment inside the dishwasher 1, creating a dry and clean working environment for the subsequent operation of the sterilization mechanism 407, and further ensuring stable sterilization efficiency.
[0033] The principles and implementation manners of the present application are described by using specific examples in the present application, and the above examples are only used to help understand the method of the present application and its core idea. The above description is only the preferred implementation manner of the present application, and it should be noted that, due to the limited expression of the text, there are objectively infinite specific structures, and for ordinary skilled persons in the technical field, some improvements, refinements or changes can be made without departing from the principles of the present application, and the above technical features can also be combined in an appropriate manner; the improvements, refinements, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, shall be regarded as the protection scope of the present application.
Claims
1. A UV sterilization device for a dishwasher, characterized in that: It includes a dishwasher (1), a rotating door (2), an operation panel (3), and a sterilization module (4); The dishwasher (1) has a rotating door (2) installed on the front side; The front side of the dishwasher (1) is also equipped with an operation panel (3) for controlling the dishwasher (1); A sterilization module (4) for sterilizing and disinfecting the inside of the dishwasher (1) is installed on the side of the dishwasher (1). The sterilization module (4) includes a mounting frame (401) that is fixedly connected to the dishwasher (1). The mounting frame (401) also has a sterilization mechanism (407) for sterilization and disinfection installed inside. A drying mechanism (409) that is fixedly connected to the mounting frame (401) is provided above the sterilization mechanism (407). The first motor (402) is also installed on one side of the inner side of the mounting frame (401). The end of the main shaft of the first motor (402) is fixedly connected to a threaded shaft (403). The outer side of the threaded shaft (403) is screwed with a threaded sleeve (404). The outer side of the threaded sleeve (404) is fixedly connected to a sealing plate (405).
2. The ultraviolet sterilization device for a dishwasher according to claim 1, characterized in that: The bottom of the sealing plate (405) is embedded inside the sealing bracket (406), and the outer side of the sealing bracket (406) is fixedly connected to the mounting frame (401). The sealing bracket (406) has a groove on the side facing the sealing plate (405).
3. The ultraviolet sterilization device for a dishwasher according to claim 1, characterized in that: A guide block (408) is also provided on one side of the sealing plate (405), and the outer side of the guide block (408) is fixedly connected to the mounting frame (401).
4. The ultraviolet sterilization device for a dishwasher according to claim 3, characterized in that: One side of the guide block (408) is provided with an inclined surface.
5. The ultraviolet sterilization device for a dishwasher according to claim 1, characterized in that: The sterilization mechanism (407) includes a push mechanism (4071) fixedly connected to the mounting frame (401). The free end of the push mechanism (4071) is fixedly connected to a mounting bracket (4072). The other end of the mounting bracket (4072) is rotatably connected to a sterilization lamp mounting frame (4073). Sterilization lamps (4074) are installed side by side on the inner side of the sterilization lamp mounting frame (4073).
6. The ultraviolet sterilization device for a dishwasher according to claim 5, characterized in that: The mounting bracket (4072) is rotatably connected to a telescopic device (4075), and the other end of the telescopic device (4075) is rotatably connected to a sliding block (4076). The outer side of the sliding block (4076) is slidably connected to the germicidal lamp mounting frame (4073).
7. The ultraviolet sterilization device for a dishwasher according to claim 1, characterized in that: The drying mechanism (409) includes a drying frame (4091) fixedly connected to the mounting frame (401), a second motor (4092) is installed inside the drying frame (4091), a fan blade (4093) is fixedly connected to the end of the main shaft of the second motor (4092), and a heating mesh (4094) fixedly connected to the drying frame (4091) is provided below the fan blade (4093).
8. The ultraviolet sterilization device for a dishwasher according to claim 7, characterized in that: A drying net (4095) is fixedly connected to the drying frame (4091) below the heating net (4094).
9. The ultraviolet sterilization device for a dishwasher according to claim 1, characterized in that: A ventilation mesh is also installed on one side of the mounting frame (401).